JP2740895B2 - Method of unloading heavy work from transport container and loading heavy work into transport container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for unloading heavy goods from, for example, a transport container commonly used for land or marine transportation, or a heavy work to be unloaded from a transport container, and to a method for transporting heavy works. It relates to the method of loading into a container.

[0002]

2. Description of the Related Art In recent years, transportation containers are frequently used in land and sea transportation.
In many cases, a transport container is also used for transporting a heavy work of several tons, for example, 7 to 8 tons.

Usually, loading of a work into a container,
Cargo handling such as unloading is generally performed using a small forklift having dimensions (expressed as “small” in the present specification) that can enter these transport containers. These small forklifts are heavy and difficult to handle. Note that a work that is larger than the rated load for lifting a small forklift and that is too heavy for a small forklift is referred to as a “heavy work” in this specification.

Therefore, conventionally, heavy work W is unloaded, for example, taken out of a transport container, as shown in FIGS. 5 and 6, of a plurality of heavy works W placed on a sleeper B, on the entrance side. While the work W1 is carried out using a large forklift F, the heavy works W2 and W3 inside the work W1 are lifted by a jack operation by an operator and are placed on a heavy roller conveyor R laid on the floor instead of the sleeper B. Was. Then, the winch D placed outside the shipping container C
, The inner heavy work W2... Are sequentially moved to the entrance and drawn out, and then sequentially carried by a large forklift F to carry them out.

[0005]

However, in such a conventional cargo handling method, a large amount of labor and time are required for jack operation, laying of the heavy roller conveyor R, winch operation, and the like, and workability is greatly reduced. Together with the safety.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of unloading heavy work from a transport container and a method of transporting heavy work into a transport container, which can eliminate the jack operation, the work of laying a roller conveyor, and the like, and can solve the above problems.

[0007]

According to a first aspect of the present invention, there is provided a transporter having a traveling wheel supported by a small forklift capable of traveling inside a shipping container, the traveling forklift being undetachable by forward and backward movement of the forklift. Component, and the load receiving frame of the work loading and unloading device having a load receiving frame provided via a lifting drive in the transporting device main body, is inserted into the space below the heavy workpiece fixed in the transport container,
A first step of lifting the heavy work by receiving a load on the wheel by operating a lifting drive after that,
A second step of moving the work loading / unloading device to the temporary storage position of the entrance / exit of the transport container by the small forklift in a state where the heavy work is lifted by the lifting / lowering drive,
At this temporary placement position, the load receiving frame is lowered by the lifting / lowering drive to place the heavy work in the temporary placement position, and then the third step of removing the work loading / unloading device from the heavy work by a small forklift, and lifting the heavy work And a fourth step of unloading the heavy work from the temporary storage position using a large forklift.

According to a second aspect of the present invention, a large forklift capable of lifting a heavy work is used to carry the heavy work to a temporary storage position at the entrance and exit of the transport container, and to move the heavy work inside the transport container. A work loading and unloading machine having a small forklift, a carrier body that is irremovably supported by forward and backward movement of the forklift and has wheels for traveling, and a load receiving frame provided on the carrier body via a lifting drive. The second, in which the load receiving frame of the device is inserted into the space below the heavy work set at the temporary placement position of the entrance and then the heavy work is received by the wheels and lifted by operating the lifting drive. In the state where the heavy work is lifted by the lifting drive, the small forklift is moved to the loading position in the transport container. A third step of lowering the load receiving frame by the lifting / lowering drive at this loading position and fixing the heavy work to the loading position, and then removing the work loading device from the space below the work by a small forklift. A method for carrying heavy work into a transport container, comprising:

[0009]

As described above, a small forklift capable of traveling inside the transport container and supporting the work loading / unloading device so as not to be detachable, and a large forklift traveling outside are selectively used to carry out cargo handling in each of the first to fourth steps. By doing so, the work of unloading and loading heavy work from the transport container is streamlined. The work loading / unloading device moves with the forklift and includes a load receiving frame that can be lifted by wheels and a lifting / lowering drive. This allows the heavy work to be placed via the load receiving frame, and the weight of the heavy work is supported by wheels rolling on the floor surface, so that the weight of the heavy work is not borne by the lifting part of the forklift. The heavy work can be freely moved in the shipping container using a small forklift.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a work loading / unloading apparatus 1 in which the unloading method and the loading method of the present invention can be used.
It is shown together with.

The work loading and unloading apparatus 1 includes a carrier body 4 including a base 2 and a fork 3 and a load receiving frame 5. In addition, the locking portion 6 provided on the base portion 2 is supported by a lifting portion 9 of a forklift 7 which moves up and down. The forklift 7 is a small forklift capable of entering and exiting the container C. FIG. 1 is a diagram illustrating the inward heavy work W placed and stored on the sleeper B in the container C. 2 shows an initial moving state of moving to the temporary placement position and carrying out. Note that this state means a state at the end of movement of the small forklift 7 when the heavy work is carried into the transport container C, that is, a state at one loading position.

The elevating portion 9 is a tilt frame 10 provided with an upper horizontal member 11 and a lower horizontal member 12 for attaching a so-called fork in this example in the forklift 7. Attached to a lift bracket 14 or the like that is supported by the mast member 13 and moves up and down by a cylinder or the like. The elevating portion 9 to which the locking portion 6 is attached can be constituted by the tilt frame 10, the lift bracket, or other components attached to them.

Further, the fork-like transporting body P for placing and transporting the heavy workpiece W over the heavy workpiece W is formed on the tilt frame 10 by arranging one left and right workpiece loading apparatus 1 of the present invention of the same shape. Can.

The carrier body 4 is provided with the fork portion 3 extending vertically at the lower end of the base portion 2 provided with the locking portion 6 which rises vertically and is supported by the lifting portion 9 of the forklift 7 on the back surface. ing.

In this embodiment, the base portion 2 and the fork portion 3 each have an L-shaped frame plate which is bent at a right angle on both sides, as shown schematically in FIG. 17 and the horizontal portions extending horizontally form the side plates 19, 19 of the fork portion 3.

Further, the base portion 2 is reinforced by welding a column member made of, for example, a square steel pipe along the back edge thereof between the side plates 17, 17, and at the upper end and the front edge side of the side plates 17, 17. An attachment frame for attaching joints 21, 21 for connecting hydraulic hoses 20, 20 for adding and removing hydraulic pressure is fixed.

In the present embodiment, the locking portion 6 is provided on the back surface of the base portion 2 and forms a downward groove for fitting the upper edge portion of the upper horizontal member 11 with the back surface. A piece 22 and a lower locking piece 23 forming an upward groove into which the lower edge of the lower horizontal member 12 is fitted.

Furthermore, the upper locking piece 22 is provided with a stopper 25 for positioning, for example, a concave portion Q provided on the upper side of the upper horizontal member 11. For this reason, the locking portion 6 locks the base portion 2 irremovably from the tilt frame 10 even when the forklift 7 moves back and forth. Therefore, even when the forklift 7 retreats, the work loading and unloading device 1 can move integrally without detaching and getting out, thereby improving the moving efficiency.

When the forklift 7 uses one support shaft in place of the upper and lower horizontal members 11 and 12 for mounting a so-called fork, the locking portion 6 is formed as a hole through which the support shaft passes. It can be variously modified.

In the present embodiment, the fork portion 3 includes the small and long side plates 19, 19, and the side plates 19, 19.
It has a plurality of vertical connecting plates 27, 27 joining at right angles, thereby forming a long frame 30 in the form of a fork. In addition, in order to withstand a large load, the side plates 19 of the long frame 30 are connected to each other by a support shaft 31A, and a number of wheels 31 such as a traveling nylon roller and urethane roller are connected by the support shaft 31A. The upper edge does not project from the upper end of the side plate 19, and the lower edge of the wheel 31 projects from the lower end of the side plate 19 and is pivotally attached.

The fork portion 3 may have a length approximately equal to or longer than the length of the container C, for example, in order to facilitate the loading and unloading of the heavy work W.
In this example, for example, the length is set to approximately 80 to 150 cm, which is approximately the same length as a normal fork, for the purpose of driving operability of a forklift. Further, the minimum height of the fork portion 3, that is, the height of the upper surface at the lowered position of the load receiving frame 5 is made as small as possible.

The wheels 31 may be caster wheels which can be turned around in a plane.

The fork unit 3 further includes a lifting drive 32
Is installed. In this example, the lifting drive 32 is a hydraulic cylinder having a small stroke, for example, a stroke of about 30 to 50 mm, and a large lifting force attached to each of the connecting plates 27, 27, and has a rod fixed upward. .

The load receiving frame 5 is fixed to the rod end. The load receiving frame 5 includes side plates on both sides of a long and tapered upper plate 40 extending from the vicinity of the base portion 2 to the front end of the fork portion 3 on the long frame 30 along the fork portion 3. The hanging pieces 41, 41 are provided along the outer surface of the device. The load receiving frame 5 is fixed to the rod end of the lifting drive 32 by a mounting portion on the lower surface of the upper plate 40, and the heavy work W on the upper plate 40 is operated by the operation of the lifting drive 32.
Can be lifted. The hydraulic hoses 20, 20 extending from the joints 21, 21 are connected to the import and output ports of the hydraulic cylinder.

The lift drive 32 may be directly moved up and down using a linear motion machine such as a hydraulic cylinder, or may be combined with a mechanism for increasing the power using a link. A rotating machine can be used in combination with a link.

In the present embodiment, the forklift 7 is provided with a manifold 42 having a joint to which the other end of the hydraulic hose 20 is connected, on both outer side surfaces of the mast member 13. In addition, a branch circuit interposed in the hydraulic circuit built in the forklift 7 conducts to the manifold 42,
Further, the manifold 42 is operated by an operating device (not shown) such as a lever or a switch provided in a driver's seat or the like.
Hydraulic pressure can be supplied to the lifting drive 32 via 2 or the hydraulic pressure can be removed.

Next, a method of unloading a heavy work from a transport container according to the first aspect of the present invention using the work loading and unloading apparatus 1 having such a configuration will be described.

As described above with reference to FIG. 1, the heavy work W is placed on the sleeper B, so that a space is formed below the heavy work W between the sleepers B and is fixed inside the transport container C. Have been.

First, a pair of work loading / unloading devices 1 are supported by the locking portions 6 on the tilt frame 10 which is the elevating portion 9 of the small forklift 7 and on the left and right sides of the lower horizontal members 11, 12; It is locked by the stopper 25 at an interval suitable for the heavy work W. As a result, the work loading / unloading device 1 is locked to the small forklift 7 so that it cannot be detached by the forward / backward movement of the forklift.

The two hydraulic hoses 20 make the joint 2
1 and the manifold 42 are connected.

As a first step of the unloading method, a small forklift 7 is lifted up to the extent that the wheels 31 of the work unloading device 1 do not touch the ground, and a small forklift 7 is schematically shown in, for example, FIGS. The heavy work W is driven to the position where the heavy work W is to be placed, and the fork portion 3 and thus the load receiving frame 5 are placed in the lower space between the sleepers B, B on which the heavy work W is placed, while adjusting the height of the work handling devices 1, insert.

At the time of or after the insertion, the elevating portion 9 is lowered, so that the wheels 31 are securely grounded. Also, after the driver confirms the grounding of the wheels 31, the operator operates the operation device, supplies hydraulic pressure from the hydraulic hose 20, and moves the heavy work W over the sleepers B via the load receiving frame 5 by the operation of the lifting drive 32. The wheel 31 can carry the load of the heavy work W by lifting and lifting.

Next, as the second step, the work loading device 1
However, in a lifting state in which the load of the heavy work W is received by the wheels 31 via the load receiving frame 5 and the lifting / lowering drive 32, the small forklift 7 pulls the work loading and unloading device 1 and transfers the heavy work W to the transport container C. Move to the temporary placement position of the entrance,
Let it run. Therefore, the small forklift 7 does not carry the load of the heavy work W. As a result, a work that is heavier than the rated load for lifting the small forklift can be conveyed by the pulling force of the small forklift. Since the locking portion 6 is attached to the elevating portion 9 so as not to be detached by the movement of the forklift 7, even when the forklift 7 moves backward, the work transfer device 1 can be moved.
Move together without detaching.

Next, as a third step, sleepers B, B are prepared parallel to the long frame 30 at the temporary placement position of the entrance and exit, and the heavy work W
Is transferred onto the sleeper B and fixed, and then the small forklift 7 is moved to take out the load receiving frame 5 of the work loading / unloading device 1 from the space between the sleepers B under the heavy work.

Further, as a fourth step, the transferred heavy work W is sequentially carried out from the temporary storage position of the entrance of the transport container C by a large forklift F capable of lifting the heavy work W.

As described above, by using the small forklift 7, a heavy work exceeding the rated load can be efficiently unloaded from the transfer container C using the work transfer device 1 in cooperation with the large forklift F. It will be.

Next, a method of carrying the heavy work W into the transport container C will be described. It is clear that this is done by substantially the same steps as in the unloading method, but only in reverse order.

That is, in the first step, the heavy work W is carried to the temporary storage position of the entrance and exit of the transport container C by the large forklift F capable of lifting the heavy work W, and is fixed on a sleeper or the like. In the second step, the load receiving frame 5 of the supported work transfer device 1 is inserted into a space below the heavy work W into a small forklift 7 that can travel inside the transport container C. The work transport device 1 is supported by a forklift 7 so as not to be detached by forward and backward movement, and has a transport tool main body 4 having wheels 31 for traveling, and the load receiver provided on the transport tool body 4 via a lifting drive 32. And a frame 5. Thereafter, the lifting / lowering drive 32 is operated to lift the heavy work W by receiving the load with the wheels 31. In the third step, the heavy work W is transported to the loading position in the transport container C by the small forklift 7 in a state where the heavy work W is lifted by the lifting drive 32. Further, in the fourth step, after the load receiving frame 5 is lowered by the lifting / lowering drive 32 at this loading position and the heavy work W is fixed at the loading position, the work loading device 1 is moved by the small forklift W to the heavy work W. Take out from the space below and finish loading. The heavy work W can be sequentially carried in by repeating such work.

As described above, it becomes easy to carry heavy work into the shipping container using a small forklift,
Enhance workability and safety of cargo handling.

[0040]

According to a first aspect of the present invention, there is provided a method for carrying out and carrying in a small container capable of traveling within the transport container by using a work handling apparatus having wheels and a vertically movable load receiving frame. Heavy work can be transferred without directly applying a load to the forklift and without the need for manual labor as in a conventional device, and safety and workability can be improved in cooperation with a large forklift.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a process of the present invention.

FIG. 2 is a perspective view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a perspective view showing a state in which an example of a heavy work W is accommodated in a container.

FIG. 5 is a front view illustrating a conventional means for carrying a heavy work W in and out of a container.

FIG. 6 is a perspective view illustrating a conventional means for carrying a heavy work W in and out of a container.

[Explanation of symbols]

 2 Base part 3 Fork part 4 Carrier body 5 Load receiving frame 6 Locking part 7 Forklift 9 Elevating part W Heavy work

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Osamu Kanizumi 6-1-1-1 Heiwajima, Ota-ku, Tokyo Inside Tokyo Nichiyu Co., Ltd. (72) Inventor Tsunekazuya 13-5 Nishigaoka, Kohoku-ku, Yokohama, Kanagawa 72) Inventor Masashi Uchi 2-11-14 Wakihama-cho, Chuo-ku, Kobe City, Hyogo Prefecture Inside Shinko Shipping Co., Ltd. (56) References JP-A-63-165297 (JP, A) JP-A-62-65897 (JP, A) JP-A-61-267696 (JP, A) JP-A-3-81179 (JP, U)

Claims (2)

(57) [Claims] 1. A transport device main body having a traveling wheel supported by a small forklift capable of traveling inside a transport container and being undetachable by forward and backward movement of the forklift, and an up-down drive by the transport device body Inserting the load receiving frame of the work loading and unloading device having a load receiving frame provided through a machine into a space below the heavy work fixed in the transport container, and then operating the lifting / lowering drive to thereby operate the heavy work A second step of moving the work loading / unloading device to a temporary storage position of an entrance / exit of the transport container by the small forklift in a state where the heavy work is lifted by the lifting / lowering drive device. At this temporary placement position, the load receiving frame is lowered by the lifting / lowering drive, and the heavy work is fixed at the temporary placement position. A third step of removing the work loading device from the heavy work by a lift, and a fourth step of unloading the heavy work from the temporary placement position by a large forklift capable of lifting the heavy work. How to take out from the shipping container. 2. A first step in which a heavy work is carried to a temporary storage position of an entrance and exit of a transport container by a large forklift capable of lifting the heavy work, and the first step of setting the heavy work into a small forklift capable of traveling inside the transport container. A carrier body that is irremovably supported by forward and backward movements of the forklift and has wheels for traveling, and a carrier frame provided on the carrier body via a lifting drive; A second step of inserting the heavy work into the lower space of the heavy work set at the temporary placement position of the entrance, and then lifting the heavy work by receiving a load with the wheels by operating a lifting / lowering drive; A third process in which the small forklift travels to the loading position in the shipping container in a state where the heavy work is lifted by the driving machine; And a fourth step of lowering the load receiving frame by the lifting / lowering drive at this loading position and fixing the heavy work to the loading position, and then removing the work loading / unloading device from the space below the work by a small forklift. A method for carrying heavy work into a transport container, comprising: